package com.zhiyou100.review.day015.mycollection;

import java.util.TreeSet;

/**
 * @packageName: Test2
 * @className: com.zhiyou100.review.day015.mycollection
 * @Description: TODO 测试 2
 * @author: yang
 * @date: 6/23/20
 */
public class Test2 {
    public static void main(String[] args) {
        TreeSet<Object> objects = new TreeSet<>();
        objects.add("a");
    }
}
